Fracking Oil Waste Water is being recycled for agricultural use.
I remember years ago when "greywater" was the hot topic of conversation and all the controversy of if and how it can or should be used. It became the "way of the future for irrigation" and more. Yes, when handled correctly and used daily so bacteria does not build up, there is a time and place for the benefits of "greywater". There is still a matter of concern with the recycling of the detergents and soaps etc., that are in greywater and their effects on crops and soils.
"Greywater is gently used water from your bathroom sinks, showers, tubs, and washing machines. It is not water that has come into contact with feces, either from the toilet or from washing diapers.